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Phone Directory 303-499 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-499 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-4990###
303-4991###
303-4992###
303-4993###
303-4994###
303-4995###
303-4996###
303-4997###
303-4998###
303-4999###